Ok, you need to go to Planned Parenthood. Usually they're all over the US. Look it up online. Go to :
http://www.plannedparenthood.org/ppmnj/
You have three days usually but as long as her period starts over no worries.
Good luck! I've been there before myself and it is scary if you're the girl.
They don't ask for ID or anything. It is like $45 I think or in that range...but hey an abortion or baby is alot more.
Hope this helps!